Technical data

Field Replaceable Unit Removal and Replacement

Shelf Manager

Chapter 1

Shelf Manager

The 14-Slot Shelf contains two redundant Shelf Managers (ShMMs) as hot-swap FRUs. These units are

located in the lower left and right corners at the front of the Shelf, and protrude into the air intake plenum.

Both ShMMs are accessible from the outside front of the Shelf.

WARNING Potential Electrical Shock Hazard to Personnel. System power is applied to the 14-Slot Shelf at

all times during this hot-swap removal and replacement procedure. Observe all electrical

safety procedures while working on this hot-swap unit.

Removing a Shelf Manager Unit

CAUTION Electrostatic Discharge Hazard. Observe all ESD safety precautions while completing this

procedure. Failure to follow ESD safety precautions could result in damage to the 14-Slot Shelf

and equipment.

To remove a ShMM unit, complete the following steps:

Step 1. Loosen the ShMM fixing screw (#1, Figure 1-4), and pull the ShMM extraction handle

approximately one-half of its full travel distance away from the ShMM front panel. The blue

hot-swap (H/S) LED (#10, Figure 1-4) will flash intermittently as the request is being processed by

the Shelf Manager, then illuminate solid when the unit is ready to be hot-swapped (removed).

Figure 1-4Shelf Manager (ShMM) Front Panel